Why Do Some Bosch Oxygen Sensor Threads Appear "Burnt"?
To ensure quality, Bosch factory tests each oxygen sensor in simulated exhaust gas...
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How Do I Find a Colder or Hotter Plug?
Each spark plug has a unique heat range. How can you find a plug that is a hotter or colder heat range?...
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What is a Resistor Spark Plug?
Resistor spark plugs prevent interference with electronic equipment...
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Can I Use Platinum, Iridium or Ruthenium Plugs with Nitrous Injection?
Iridium - yes. Platinum - no. Ruthenium - maybe...
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What is a Spark Plugs Heat Range?
The term heat range refers to the speed with which a plug can transfer heat from the combustion chamber to the engine head...
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What are Copper Core Spark Plugs?
Almost all spark plugs use a copper cored center electrode to conduct the electricity, jump the gap, and promote heat dissipation...
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How Long Do Bosch Iridium Plugs Last?
Bosch's iridium spark plug series brings OEM iridium long life plugs to the market...
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Bosch Center Electrode Designs
Center electrodes come in a variety of shapes and sizes...
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